Based On Article 20 Of The Swiss Stock Exchange Act, Syngenta Ag Informs As Follows

BlackRock Inc., 55 East 52nd Street, New York, 10055, U.S.A, disclosed on February 6, 2014, that its total holding in Syngenta now amounts to 4,800,151 shares (5.15% of the total share capital), split into 4,748,336 registered shares plus CFDs corresponding to 51,815 shares. Furthermore, a sale position of CFDs corresponding to 49,986 shares was reported according to article 12 para 1 b of the Stock Exchange Ordinance-FINMA (SESTO-FINMA). Details are available on http://www.six-exchange-regulation.com/obligations/disclosure/major_shareholders_en.html.

The change in share ownership needed to be reported to t
he Swiss Stock Exchange for having exceeded the notifiable threshold of 5.00% as of February 4, 2014.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.